error when go to http://localhost/moodle/admin

[q8ytop]

hi there

i make my full installation from this site http://schoolforge.org.uk/index.php/Installing_Moodle_on_an_Ubuntu_workstation step by step and the apache2 it is work but when i go to this address by using the browser

http://localhost/moodle/admin

it is give me this error


Error: Database connection failed.

It is possible that the database is overloaded or otherwise not running properly.

The site administrator should also check that the database details have been correctly specified in config.php


how can i fix this problem

thank you for halp

[Thirtysixway]

You need to edit the config.php file and enter your mysql database connection info.

[q8ytop]

You need to edit the config.php file and enter your mysql database connection info.

where can i find this config file and what i must do for it to be good config to work ?